Isauro
An unusual masculine name of uncertain origin, possibly Spanish.
Name Census estimates that about 315 living Americans carry the first name Isauro. The name is used almost exclusively for boys. The average person named Isauro today is around 35 years old, and the year with the single highest number of Isauro births was 1989 (15 babies).
This page is the full Name Census profile for Isauro. Below you will find a gender breakdown showing how the name splits between male and female registrations, a year-by-year popularity chart stretching back to 1880, decade-level totals, the top US states for this name, its meaning and etymology, and a set of frequently asked questions with data-backed answers.
People living today
315
~ 1 in 1,088,109 Americans
Peak year
1989
15 babies that year
Average age
35
years old
2019 SSA rank
#12,893
Tracked since 1922
Census
Isauro in the 2020 Census
The 2020 Census recorded 1,075 people with the first name Isauro, which placed it at #11,778 in the published first-name tables. This is a snapshot of people who already had the name at the time of the Census.
The SSA sections elsewhere on this page answer a different question: how often parents gave the name to babies over time. The "people living today" figure on this page is different again: it is a current estimate built from SSA birth records and age-based survival rates, so the two numbers are not expected to match exactly.
2020 Census rank
#11,778
National first-name rank
People counted
1.1K
1,075 in the published race/origin table
Per 100,000
0.4
People with this name in 2020
Largest reported group
Hispanic or Latino
95.5% of people with this name
Demographics
Ancestry and ethnicity for Isauro
In the 2020 Census race and Hispanic-origin table, the largest reported group for people named Isauro is Hispanic at 95.5%. The next largest groups are Asian/Pacific Islander (2.4%) and White (1.5%). These figures describe the people who had the name in 2020, not any inherent property of the name itself.
The bar chart below shows how people with the first name Isauro described their own race and ethnicity on the 2020 Census form. The Census Bureau groups responses into six broad categories: White, Black or African American, Hispanic or Latino, Asian and Pacific Islander, American Indian and Alaska Native, and Two or More Races. When a category has too few respondents for a given name, the Bureau suppresses the figure to protect individual privacy, which is why some names show fewer than six slices.
Percentages are shown so the breakdown is easy to read across every published category. Because the 2020 Census first-name file also includes raw headcounts for each group, Name Census can show those alongside the percentages in the legend and hover tooltip.
Keep in mind that these are self-reported numbers. A first name does not determine a person's race or ethnicity, and the distribution you see here reflects the specific population who happened to carry the name Isauro at the time of the 2020 Census, not any inherent property of the name itself.
- Hispanic or Latino95.5% · 1,027
- Asian and Pacific Islander2.4% · 26
- White1.5% · 16
- Two or more races0.3% · 3
- American Indian and Alaska Native0.2% · 2
- Black or African American0.1% · 1
Popularity
Isauro: popularity over time
The SSA tracks Isauro from the 1920s through to the 2010s, spanning 9 decades of birth certificate data. The biggest single decade for the name was the 1990s, with 86 total registrations. Although the numbers have come down from the 1990s peak, Isauro remains solidly in use and shows no sign of disappearing from maternity wards.
Babies born per year
Decades
Isauro by decade
The table below breaks the full SSA timeline into ten-year windows. Each row shows how many male and female babies were given the name Isauro during that decade, along with a combined total. This is useful for spotting eras where the name surged or retreated.
Geography
Where Isauros live
Origin
Meaning and history of Isauro
The name Isauro is of Greek origin, derived from the word "isauros" meaning "lizard" or "green lizard". It likely originated in ancient Greece during the classical period, around the 5th century BC.
One of the earliest recorded examples of the name Isauro can be found in the writings of the ancient Greek historian Herodotus, who lived from around 484 BC to 425 BC. He mentioned a place called Isauria, located in modern-day Turkey, which may have been named after a person or group with the name Isauro.
In the early Christian era, there was a saint named Isauro who lived in the 3rd or 4th century AD. He was a martyr who was persecuted and killed for his Christian beliefs, but not much is known about his life beyond this.
An early bearer of the name Isauro was a Byzantine scholar and mathematician who lived in the 9th century AD. He wrote several works on mathematics and astronomy, contributing to the preservation of ancient Greek knowledge during the Byzantine period.
In the 13th century, there was a notable figure named Isauro de Castro, a Spanish nobleman and military leader who played a role in the Reconquista, the Christian reconquest of the Iberian Peninsula from the Moors.
Another historical figure with the name Isauro was Isauro Artigas, a Uruguayan politician and military leader who lived from 1835 to 1900. He fought in the Uruguayan Civil War and later served as the President of Uruguay from 1897 to 1899.
While the name Isauro has its roots in ancient Greek culture, it has been used across various regions and time periods, often associated with figures of historical significance or those who made contributions to fields such as scholarship, religion, and military leadership.
People
Isauro + last name combinations
How many people share a full name with Isauro as the first name? Click a combination below to see the estimate, or search any pairing.
Related
Other names starting with I
Other first names starting with I with a similar number of bearers.
FAQ
Isauro: questions and answers
How many people in the U.S. are named Isauro?
Name Census puts the figure at roughly 315 living Americans. We arrive at this by taking every SSA birth registration for Isauro going back to 1880 and adjusting each cohort for expected survival using CDC actuarial life tables. The result is an age-weighted living-bearer count, not a raw birth total. That works out to about 1 in 1,088,109 US residents.
Is Isauro a common name?
We classify Isauro as "Very Rare". It ranks above 79.7% of all first names in the SSA dataset by living bearers. Across the full history of the data, 345 babies have been registered with this name.
When was Isauro most popular?
The single biggest year for Isauro was 1989, when 15 babies received the name. The fact that the average living Isauro is about 35 years old gives you a rough sense of which era contributed the most bearers who are still alive today.
How common was Isauro in the 2020 Census?
The published 2020 Census first-name tables recorded 1,075 people with the name Isauro, or 0.36 per 100,000 residents. That placed it at #11,778 in the national Census ranking for first names.
Why is the Census count different from the living estimate?
Because they measure different things. The Census figure is a count of people who had the name Isauro in 2020. The living estimate aims to answer a current question instead: how many people with the name are alive today, based on SSA birth records and age-based survival rates. Since one number is a 2020 snapshot and the other is a present-day estimate, they are not expected to be identical.
What does the Census say about the gender split for Isauro?
In the 2020 Census sex table, Isauro appears almost entirely male. Of the 1,078 people counted with this name, 99.7% were male and only a very small share were female. The Census view is a snapshot of people living with the name in 2020, while the SSA section above tracks births across time.
What does the Census say about the background of people named Isauro?
In the 2020 Census race and Hispanic-origin table, the largest reported group for people named Isauro is Hispanic at 95.5%. The next largest groups are Asian/Pacific Islander (2.4%) and White (1.5%). These figures describe the people who had the name in 2020, not any inherent property of the name itself. The percentages in the chart above come from self-reported race and Hispanic-origin responses in the 2020 Census.
Which group reports the name Isauro most often in the Census?
Hispanic is the largest reported group for people named Isauro in the 2020 Census, accounting for 95.5% (1,027 people in the published table).
Why can the Census sex total and race total differ slightly?
The Census Bureau published separate 2020 tables for sex and for race/Hispanic origin, and the released figures can differ slightly because of privacy protection in the public files. That is why this page treats the gender section and the race/origin section as two related snapshots instead of forcing them into one identical total.
Does every first name have Census demographic data?
No. The public Census first-name release only includes names that met the Bureau's publication rules, so many rarer names in the SSA files have no Census demographic snapshot. When that happens, the SSA trend, gender history, and state sections still appear, but the 2020 Census demographic sections are omitted.
What does the SSA popularity chart show?
The chart tracks births, not the number of people alive with the name today. Each point shows how many babies were given the name Isauro in that year. That makes it useful for spotting when the name rose, peaked, or faded.
Is Isauro a male name?
Yes, 100.0% of people registered as Isauro in the SSA data are male. You can see the full per-sex comparison in the gender distribution section above, which includes the latest year rank, birth count, and peak year for each sex.
Is Isauro still being used today?
Yes. The SSA still recorded Isauro in 2024, and the page above shows its latest-year rank where available. A name can be well past its peak and still remain in steady use, especially if it built up a large population over earlier decades.
Why can a name have a lot of living bearers even if it is not trendy now?
Because living-bearer counts and current baby-name popularity measure different things. A name like Isauro can build up a very large population over many decades, even if fewer parents are choosing it now than they did at its peak.
Where does this data come from?
First-name figures come from the Social Security Administration's national baby name files, which cover every name on a birth certificate from 1880 to 2024. Living-bearer estimates layer in CDC actuarial life tables broken out by sex to account for mortality. The population baseline (342,754,338) is the Census Bureau's latest national estimate. You can read the full calculation on our methodology page.
How many people have Isauro as a first name?
If you just want to know how many people have the name Isauro, HowManyOfMe.org gives you the headline number in one glance.